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Bromus diandrus Roth

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Exotic
Wild
New Zealand
Political Region

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Roth
Roth
1787
ICN
Bromus diandrus Roth
species
Bromus diandrus

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diandrus

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Bromus diandrus Roth

Annuals, 20-90 cm, loosely tufted or consisting of a solitary culm. Leaf-sheath with soft, short, spreading hairs; upper sheaths ± glabrous near base. Ligule 1.5-4 mm, denticulate to lacerate. Leaf-blade 4-30 cm × 2-7 mm, with short, ± scattered hairs, scabrid near acute tip. Culm 10-65 cm, erect or ascending, internodes with very short hairs below nodes and below panicle. Panicle 10-28 cm, very lax and nodding; branches spreading, slender, scabrid, tipped by 1-(2) spikelets. Spikelets 5.5-9.5 cm, 5-8-flowered, oblong-lanceolate to later wedge-shaped and gaping, greyish green to purplish. Glumes unequal, very narrow, acuminate, membranous, glabrous, but sparsely scabrid on keels and nerves in upper ½; lower 13-22 mm, 1-(3)-nerved, upper 20-30 mm, 3-(5)-nerved. Lemma 20-35 mm, 7-nerved, rounded, lanceolate, minutely scabrid, tapering to 2 acute to acuminate, hyaline, smooth to finely scabrid lobes 4-5 mm; awn 30-60 mm. Palea c. ⅔ length of lemma, keels sparsely ciliate. Callus with minute hairs. Rachilla 4-6 mm, finely, minutely scabrid. Stamens 2-3; anthers 1-3 mm. Caryopsis 11-13 × 1.5-2.8 mm. Plate 3A.

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Bromus diandrus Roth
Bromus diandrus Roth
Bromus diandrus Roth
Bromus diandrus Roth
Bromus diandrus Roth

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Bromus diandrus Roth
Australia
Bromus diandrus Roth
New Zealand
Bromus diandrus Roth
New Zealand
Canterbury Land District
Bromus diandrus Roth
New Zealand
Hawke's Bay Land District
Bromus diandrus Roth
New Zealand
Nelson Land District
Bromus diandrus Roth
New Zealand
North Auckland Land District
Bromus diandrus Roth
New Zealand
Otago Land District
Bromus diandrus Roth
New Zealand
Taranaki Land District
Bromus diandrus Roth
New Zealand
Wellington Land District
Bromus diandrus Roth
Norfolk Island

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editorial
FIRST RECORD: Allan, H. H. T.R.S.N.Z. 65: 2 (1935, as B. gussonii). REGION OF ORIGIN: Mediterranean. Also recorded for New Zealand as B. rigidus and B. rigidus subsp. gussonii.

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ffb34475-aee7-45e4-96e8-51e80331ffb4
scientific name
Names_Plants
1 January 2000
8 September 2006
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